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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,133 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.1M | 26,023 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 643 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,308 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,233 autonomous systems registered to United States. Click an AS for detail.
| 73.1M |
| 233 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,893 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,006 |
| AS701US | UUNET - Verizon Business | 43.6M | 992 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,360 |
| — |
| — |
| 0 |
| AS1994US | DNIC-AS-01994 - Navy Network Information Center (NNIC) | — | — | 0 |
| AS2032US | DNIC-AS-02032 - United States Department of Defense (DoD) | — | — | 0 |
| AS2167US | HPINC - HP Inc. | — | — | 0 |
| AS2275US | DNIC-AS-02275 - United States Department of Defense (DoD) | — | — | 0 |
| AS2276US | OCS-AS1 - OpenConnect Systems | — | — | 0 |
| AS2383US | OTA - Office of Technology Assessment | — | — | 0 |
| AS2558US | CIWMBNET - California Integrated Waste Management Board (CIWMB) | — | — | 0 |
| AS2624US | DNIC-AS-02624 - United States Department of Defense (DoD) | — | — | 0 |
| AS2692US | ATGS-MMD-AS - AT&T Enterprises, LLC | — | — | 0 |
| AS2760US | MCI-NETD - Verizon Business | — | — | 0 |
| AS2874US | ORANGE-BUSINESS-SERVICES-NORDICS ORANGE BUSINESS SERVICES U.S. Inc. | — | — | 0 |
| AS2943US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS2969US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3022US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3026US | SPRINT-MRN-BLOCK - U.S. Sprint | — | — | 0 |
| AS3047US | RICE-AS3047 - Rice University | — | — | 0 |
| AS3082US | ADVANTIS - IBM | — | — | 0 |
| AS3111US | WINDSTREAM - Windstream Communications LLC | — | — | 0 |
| AS3137US | STATE-OF-WISCONSIN-AS2 - State of WI Dept. of Administration | — | — | 0 |
| AS3383US | REDBRICK-HQ - IBM | — | — | 0 |
| AS3385US | BROADVIEWNET-AS-3385 - Windstream Communications LLC | — | — | 0 |
| AS3393US | NDEX - National Default Exchange Holdings, LP | — | — | 0 |
| AS3400US | POWERDOG - Powerdog Industries | — | — | 0 |
| AS3420US | ATTIS-ASN3420 - AT&T Enterprises, LLC | — | — | 0 |
| AS3466US | DNIC-AS-3466 - United States Department of Defense (DoD) | — | — | 0 |
| AS3498US | NET-SEN-CA-GOV - California State Senate | — | — | 0 |
| AS3499US | NET-DMV-CA-GOV - State of California Department of Motor Vehicles | — | — | 0 |
| AS3506US | FSU-SCRI - Florida State University | — | — | 0 |
| AS3516US | DSI-WR - RTX BBN Technologies, Inc. | — | — | 0 |
| AS3532US | DNIC-AS-03532 - United States Department of Defense (DoD) | — | — | 0 |
| AS3540US | DNIC-AS-03540 - United States Department of Defense (DoD) | — | — | 0 |
| AS3545US | DNIC-AS-03545 - United States Department of Defense (DoD) | — | — | 0 |
| AS3552US | UMI-AS2 - UMI | — | — | 0 |
| AS3578US | MV-COM-ASN - DSCI, LLC | — | — | 0 |
| AS3590US | C-TEC - COMMONWEALTH TELEPHONE CO. | — | — | 0 |
| AS3626US | MCIASN-2-BLK - Verizon Business | — | — | 0 |
| AS3644US | COGENT-3644 - Cogent Communications, LLC | — | — | 0 |
| AS3654US | AMSTD-NET - American Standard | — | — | 0 |
| AS3678US | GLOBAL-ASN - Global Vision Inc. | — | — | 0 |
| AS3785US | SCDC-ASN-2 - SC Data Center, Inc. | — | — | 0 |
| AS3830US | COGENT-3830 - Cogent Communications, LLC | — | — | 0 |
| AS3837US | MOSAIC-ASN-01 - The Mosaic Company | — | — | 0 |
| AS3845US | STATE-NET - CS&W, Inc. | — | — | 0 |
| AS3870US | DNIC-ASBLK-03859-03897 - Headquarters, USAISC | — | — | 0 |
| AS3899US | CHICO-NET - California State University, Chico | — | — | 0 |
| AS3971US | NETS-ABQ-VA - Biomedical Research Institute of New Mexico | — | — | 0 |